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With the help of a neat sketch, explain the operation of a speed governor of a turbine. Also give the block schematic of load frequency control model of an isolated area
Openchetan shidling asked 4 years ago • Power System Analysis
228 views0 answers0 votes
Two power system areas are interconnected and have following regulation (R) and rated power (Pr) values: Area1: R =5%, Pr =1000 MW and Area 2: R =6%, Pr =800 MW. Determine the steady changes in frequency, tie-line powers and generations when the load demand in area-2 increases by 100 MW. Also analyze the effect of connecting another area-3 (R =4%, Pr =500 MW) on the steady changes in frequency, generation and tie-line powers following the same load changes as above. Comment on the results obtained. Assume free governor operation and rated frequency of 50 Hz.
Openchetan shidling asked 4 years ago • Power System Analysis
332 views0 answers0 votes
What is meant by load-flow? Briefly explain the desirable properties of a good load-flow model. With usual notation, deduce the π model of a fixed off-nominal tap ratio transformer for load flow studies.
Openchetan shidling asked 4 years ago • Power System Analysis
244 views0 answers0 votes
Three thermal generating units are operating in parallel at 50 Hz sharing 600 MW load equally and have following rated capacity (Pr) and speed regulation (R) values: Unit-1: Pr=450 MW, R=5.4% Unit-2: Pr=400 MW, R=1.6%; Unit-3: Pr=500 MW,R=4%; Analyze the following new loading situations by comparing the operating frequency and load sharing when supplying a total load demand of (i) 400 MW (ii) 700 MW. Assume free governor operation and rated frequency of 50 Hz.
Openchetan shidling asked 4 years ago • Power System Analysis
242 views0 answers0 votes
With usual notation, deduce G-S load flow model for power systems with no PV buses and give the corresponding computational flow-chart. Also give salient features of G-S load flow model.
Openchetan shidling asked 4 years ago • Power System Analysis
209 views0 answers0 votes
In the power system shown, bus 1 is slack with (1.05+j0) pu voltage while buses 2 and 3 are load buses with known real and reactive power injections as indicated on the diagram. With (1+j0) pu initial voltage at load buses, determine its voltage at the end of first iteration using G-S load flow model. Per-unit series impedance (neglecting resistance) of lines is marked on the diagram and neglect line charging.
Openchetan shidling asked 4 years ago • Power System Analysis
314 views0 answers0 votes
With a neat sketch, briefly explain the turbine speed governing system and give the dynamic model of LFC for an isolated power system area. Hence deduce an expression for steady-state frequency deviation Δf
Openchetan shidling asked 4 years ago • Power System Analysis
277 views0 answers0 votes
What is a tap changing transformer?
Answeredchetan shidling asked 4 years ago • Power System Analysis
276 views1 answers0 votes
What are the properties for a good load flow solution?
Answeredchetan shidling asked 4 years ago • Power System Analysis
257 views1 answers0 votes
What are the uses of load flow?
Answeredchetan shidling asked 4 years ago • Power System Analysis
272 views1 answers0 votes
Parameters we will get after load flow solution?
Answeredchetan shidling asked 4 years ago • Power System Analysis
260 views1 answers0 votes
Objectives of load flow?
Answeredchetan shidling asked 4 years ago • Power System Analysis
287 views1 answers0 votes
What is a load flow in power system?
Answeredchetan shidling asked 4 years ago • Power System Analysis
272 views1 answers0 votes
What is a droop characteristics?
Answeredchetan shidling asked 4 years ago • Power System Analysis
332 views1 answers0 votes
What are the objectives of LFC (Load Frequency Control)?
Answeredchetan shidling asked 4 years ago • Power System Analysis
927 views1 answers0 votes
What is a interconnected system in power system?
Answeredchetan shidling asked 4 years ago • Power System Analysis
308 views1 answers0 votes
Design and development of Truncated Angle Variant (TAV) controller for multi-source-fed BLDC motor drive
Answeredchetan shidling asked 4 years ago • Electric Vehicle
270 views1 answers0 votes
What is a Truncated Angle Variant (TAV)?
Answeredchetan shidling asked 4 years ago • Control System
325 views1 answers0 votes
What is a synchronous condenser in machines?
Answeredchetan shidling asked 4 years ago • Electrical Machines
303 views1 answers0 votes
What is a Ybus
Openchetan shidling asked 4 years ago • Power System Analysis
199 views0 answers0 votes
what is a Ybus?
Openchetan shidling asked 4 years ago • Power System Analysis
223 views0 answers0 votes
Im getting output of two cells to be zero after simulation instead of balancing.
AnsweredNikita asked 4 years ago • Battery Management System
309 views1 answers0 votes
Types of buses in power system?
AnsweredChetan Shidling asked 4 years ago • Power System Analysis
378 views1 answers0 votes
Active balancing system with flyback converter
OpenNikita asked 4 years ago • Battery Management System
290 views0 answers0 votes
Difference between Zbus and Ybus in power system?
Openchetan shidling asked 4 years ago • Power System Analysis
3741 views0 answers0 votes
A lossless power system consists of three thermal plants with following fuel cost models (inRs/Hr): F1=0.01P12+40P1+1500;F2=0.0125P22+38P2+2000; F3=0.008P32+36P3+1000. Analyze the following situations and comment on the results by comparing the cost of received power and total fuel cost when supplying a total load demand of 1200 MW. (i) Optimal load dispatch assuming no generation constraints (ii) Optimal load dispatch with generation constraints 30≤P1≤550 MW; 10≤P2≤600 MW; 20≤P3≤575 MW
Openchetan shidling asked 4 years ago • Power System Analysis
231 views0 answers0 votes
Deduce expressions to develop the network model ZBUS using building algorithm for the addition of an uncoupled network element as a BRANCH
Openchetan shidling asked 4 years ago • Power System Analysis
250 views0 answers0 votes
Determine ZBUS with node 0 as reference for the network shown using building algorithm. Add the elements in the sequence 0-1, 0-2, 1-2 and 2-3. Per-unit sequence impedance values are marked on the diagram and neglect mutual coupling.
Openchetan shidling asked 4 years ago • Power System Analysis
286 views0 answers0 votes
Define incremental fuel cost. Deduce the coordination equation for optimal load dispatch in a lossless system with k-thermal plants and hence arrive at a generalized formula for cost of received power (λ). Also explain the step by step procedure to handle inequality constraints
Openchetan shidling asked 4 years ago • Power System Analysis
225 views0 answers0 votes
The fuel cost models (in Rs/Hr) of the thermal plants of system shown are: F1=0.025P12+35P1+1500 and F2=0.03P22+34P2+2000. When certain load demand is optimally dispatched, it was found that the optimal generation of plant-1 is 216.115 MW and power loss is 23.3528 MW. Determine the optimal generation of plant 2, cost of received power, total load demand, total fuel cost and penalty factors. Also analyze the effect of not coordinating the transmission loss on total fuel cost and transmission loss when optimally dispatching the same total load demand found above and comment on the results.
Openchetan shidling asked 4 years ago • Power System Analysis
337 views0 answers0 votes
With usual notation, derive an expression for YBUS by singular transformation. The bus admittance matrix of a 3-Bus system with ground node as reference is given below. Assuming no mutual coupling, obtain the power system network indicating the self-impedance of elements.
Openchetan shidling asked 4 years ago • Power System Analysis
329 views0 answers0 votes
Why high frequency transformer is small in size?
Answeredchetan shidling asked 4 years ago • Electrical Machines
1288 views1 answers0 votes
Apply Newton Raphson Algorithm to find the root up to 2nd iteration of the following equation f(x)=x3-6×2 +9x-4=0 ,use initial estimate of x(0) =6.Approximate the solution upto 4 decimal places
Answeredchetan shidling asked 4 years ago • Power System Analysis
434 views1 answers0 votes
Apply Gauss Siedal Algorithm to find the root up to 2nd iteration of the following equation f(x)=x3-6×2 +9x-4=0 ,use initial estimate of x(0) =2 .Approximate the solution upto 4 decimal places
Answeredchetan shidling asked 4 years ago • Power System Analysis
276 views1 answers0 votes
To solve power flow problem, three phase model of power system is considered?
Answeredchetan shidling asked 4 years ago • Power System Analysis
278 views1 answers0 votes
For which Bus, limits on the value of reactive power are specified?
Answeredchetan shidling asked 4 years ago • Power System Analysis
261 views1 answers0 votes
For a power system network considered, at any Bus ' p ' , the reactive power injection is given by ________?
Answeredchetan shidling asked 4 years ago • Power System Analysis
251 views1 answers0 votes
The __________ Buses are most common comprising almost 85% of all buses in a given power system?
Answeredchetan shidling asked 4 years ago • Power System Analysis
255 views1 answers0 votes
For which BUS, magnitude and Phase angle of the bus voltages are known?
Answeredchetan shidling asked 4 years ago • Power System Analysis
250 views1 answers0 votes
How to make power monitoring and controlling plug or PMC plug?
Openchetan shidling asked 4 years ago • Electrical Estimating And Costing
238 views0 answers0 votes
Pipe earthing used
AnsweredSubbu asked 4 years ago • Electrical
265 views1 answers0 votes
What is a inequality constraints or generator constraints?
Answeredchetan shidling asked 4 years ago • Electrical Power Generation
351 views1 answers0 votes
How many hours per day thermal power plant works or under operation?
Answeredchetan shidling asked 4 years ago • Electrical Power Generation
323 views1 answers0 votes
The optimal load dispatch problem is related to . choose the correct option?
Answeredchetan shidling asked 4 years ago • Electrical Power Generation
291 views1 answers0 votes
What is a incremental fuel cost?
Openchetan shidling asked 4 years ago • Electrical Power Generation
270 views0 answers0 votes
What is optimal load dispatch or economic load dispatch?
Answeredchetan shidling asked 4 years ago • Electrical Power Generation
402 views1 answers0 votes
How to earn profit in power plants?
Answeredchetan shidling asked 4 years ago • Electrical Power Generation
273 views1 answers0 votes
What are the main concern of power companies?
Answeredchetan shidling asked 4 years ago • Electrical Power Generation
299 views1 answers0 votes
Types of power plants?
Answeredchetan shidling asked 4 years ago • Electrical Power Generation
510 views1 answers0 votes
What is a chords in electrical circuit?
Answeredchetan shidling asked 4 years ago • Circuit Analysis
1777 views1 answers0 votes
What is a non planar networks?
Answeredchetan shidling asked 4 years ago • Circuit Analysis
349 views1 answers0 votes
What is a cut set matrix?
Answeredchetan shidling asked 4 years ago • Circuit Analysis
368 views1 answers0 votes
How to download GATE electrical resources for free?
Answeredchetan shidling asked 4 years ago • Basic Electrical
208 views0 answers0 votes
For the power system network, the impedance data is given in table below. Find the primitive impedance matrix
Answeredchetan shidling asked 4 years ago • Transmission And Distribution System
1026 views1 answers0 votes
For the power system network shown (consider bus 1 as reference) Draw oriented connected graph and find Element node incidence matrix
Openchetan shidling asked 4 years ago • Transmission And Distribution System
719 views0 answers-1 votes
Five latest technology that electrical engineer must know?
Answeredchetan shidling asked 4 years ago • Basic Electrical
295 views1 answers0 votes
longest transmission lines in the world?
Answeredchetan shidling asked 4 years ago • Transmission And Distribution System
330 views1 answers0 votes
What is a self impedance in power system?
Openchetan shidling asked 4 years ago • Transmission And Distribution System
372 views0 answers0 votes
What represents capital Z and small z in power system?
Openchetan shidling asked 4 years ago • Transmission And Distribution System
262 views0 answers0 votes
What is a RPM?
Answeredchetan shidling asked 4 years ago • Electrical Machines
316 views1 answers0 votes
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